I did a half liter of wvo that titrated 15 . Used 1 cc. acid and 40 cc. methanol with the half liter. I kept the jar sealed and in a warm water bath of 130F. After one day it titrated 5. I was happy. Now I'm doing a 40 gallon batch of the same wvo, the only thing that bothers me is the reactor vent that goes outside,,will cause the methanol to vaporize off. But what else can I do? The thermometer on the tank reads 130 F. I'm going to leave the element on over night and do a titration in the morning.

Heatbeater-if your going to do acid esterfication in your processor, 1ml of acid per ltr of oil is not going to be enough at that Titratiron. T 15 X .15 will work. once you master that you can try to cut back a bit, but how much will depend on the residual caustic in the processor. -where your vent tube goes out side , extend it 4 or 5 feet in the air, put a couple elbows on the top to prevent rain water from getting in. Now the methanol that evaporates will condense in the tube and drip back into the processor. Tom